Traction-wheel.



D. T. TIMBERLAKE.

TRACTION WHEEL. urmcuxon mum ma. '1, 1901.

905,765; Patented Dec. 1, 190a,

dgj

, WITNESSES:

1; E NORRIS P DANIEL T.v TIMBERLAKE, OF BAILEYVILLE, KANSAS.

TRACTION-WHEEL.

Original application filed April 25, 1907, Serial No. 370,259.

Serial No.

To all whom it may concern:

Be it known that I, DANIEL T. TIMBER- LAKE, a citizen of the UnitedStates, residing I at Baileyville, in the county of N emaha and State ofKansas, have invented certain new and useful Improvements inTraction-Wheels, of which the following is a specification. My inventionrelates to an improvement in l traction wheels and is a divisional partof my application for traction engines, filed April 25, 1907, No.370,259, and the object is to provide against slipping and insure properaction of the wheel regardless of the condition of the surface, whetherrough or smooth, over which the wheel travels. j With the foregoingobject in view, my inj located on its inner face, the rim of the box andwheel having orifices, tractors slidably 1 located in said orifices,links connected with the tractors, a flange sleeve to which the otherends of the links are connected, said sleeve having cams thereon andmeans for turning the sleeve whereby to simultaneously project orretract the tractors.

My invention further consists in certain novel features of constructionand combinal tions of parts which will be hereinafter described andpointed out in the claims.

In the accompanying drawings Figure l is a side illustration of myimproved wheel; Fig. 2 is a similar view with arts broken I away; Fig. 3is a view of one of the tractors partly in section; Fig. 4 is a View ofone of the links in perspective, and Fig. 5 is a fragmentary view inplan.

The numeral 9 indicates the rim of the wheel, 10, 10 are the spokes,preferably cast integral with the rim and hub of the wheel.

he rim is provided with orifices 11, 11 preferably midway between thespokes. A box or casing, 12, is secured to the center of the wheel withits rim 61 concentric with the hub and rim of the wheel. This rim 61 ofthe box is provided with orifices 61, they corresponding in number andposition with the orifices 11, 11 in the rim of the wheel. Tractors 57,57 are slidably mounted in these I orifices and their inner ends arerovided j with eyes 14. One end of each lin 62 en- 1 ters an eye of eachtractor, and the other end enters a hole 63 in the flange 64 of the hubsleeve 65. A star shaped cam 67 is secured I to the flange 64 inposition to operate the tractors. A hand lever 66 is secured to a lSpecification of Letters Patent.

j ring or collar 68, and this i with respect Patented Dec. 1, 1908.

Divided and this application filed August 7, 1907. 387,530.

ring or collar is secured to the sleeve 65 by a set screw 69. Notches70, 70 in the rim 61 are in position to receive the lever 66 whereby tolock the latter in its two extreme positions; namely,

i of projecting or retracting the tractors, the

lever springing mto these notches when opposite one of them. When it isdesired to project the tractors, the hand lever is turned to theposition indicated in Fig. 1. WVhen it is desired to retract thetractors, the parts are thrown to the position shown in Fig. 2. Thus ina very simple way the tractors are operated. They might even be thrownin an intermediate position if desired.

In Fig. 3 a special form of tractor is illustrated, consisting of twosections; namely, a

solid section 58 of steel and a hollow or lighter section 59 of lesssubstantial material. The adjacent ends of these sections arescrewthreaded, and they are held together by means of an internallyscrew-threaded sleeve whereby the tractors may be lengthened orshortened at will.

It is evident that slight changes might be resorted to in form andarrangement of the several parts described without departing from the sirit and scope of my invention, and hence l do not wish to limit myselfto the exact construction herewith set forth, but:

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is: i

1. Atraction wheel having slidably mounted tractors, a star shaped camwheel capable of turning with respect to the wheel and links extendingfrom the inner angles of the cam to the tractors whereby one or theother edges of the V shaped notches of the cam wheel serve as lateralsupports for the links in their two extreme positions of projecting andretracting the tractors.

2. A traction wheel comprising a rim, a box, the rim of the wheel andthe rim of the box having orifices, tractors slidably mounted in saidorifices, a flanged sleeve capable of being turned with respect to thewheel and links extending from the flange to the tractors. I

3. A traction wheel comprising a rim having orifices thereon, a box therim of which has orifices, tractors slidably mounted in said orifices, aflanged sleeve capable of turning to the wheel, links extending from thesleeve to the tractors, a star-shaped cam secured to the flange, andmeans for star-shaped cam, and links having one end turning and lockingthe flange and cam. pivoted in a hole andthe other end pivotally wherebyto reject or retract the tractors siconnected with a tractor.

multaneous y. In testimony whereof I affix my signature 5 4. A tractionwheel comprising a hub, rlim, in presence of two witnesses.

spokes, hub sleeve and tractors havin s iding connection with the rim,the hub sleeve DANIEL TIMBERLAKE' having a flange, said flange having astar- Witnesses:

shaped cam secured thereto and provided SAML. W. COCKRELL,

10 with holes opposlte the inner angles of the VERNON E. Honens.

